The project has been delayed for the time being, amid reports of disagreement within the ruling Popular Party.

Spain’s current law gives women the right to an abortion on demand for up to 14 weeks of pregnancy, or up to the 22nd week if the mother's health is at risk or the foetus shows serious deformities.

Passed in 2010, the law brought Spain into line with much of Europe. It was one of a series of liberal social reforms by the then Socialist government that angered Catholic Church authorities.

The current conservative government has not yet said exactly what changes it plans, but Justice Minister Alberto Ruiz-Gallardón, in charge of the reform, has said abortion should be banned in cases of a deformed foetus.